This is a very odd movie. It does have some good horror moments, but overall it's just schlepping through the same old vein that so many other movies have done better. There is no actual plot, just a group of people you really don't care that much about encountering a creature in the dark. Where have we seen that before? The monster itself borrows (in my opinion) hugely from the HR Giger 'Alien', complete with huge jaw and slavering teeth. Plus it moves a bit like a velociraptor. And though I do like Emmanuelle Vaugier as the tough sheriff wielding a shotgun, she's no Sigourney Weaver. What exactly was the creature's motive? Some obscure reference to gathering DNA - in which case why did it go to sleep for 900 years? Maybe I missed something, because halfway through I was wishing I'd picked a DVD on selecting wallpaper patterns. And the ending? All I can say is it finished and I could get back to the life I'd put on hold for an hour and a half.
So if you like films with guaranteed gory bits, acting of questionable ability, stereotypical characters, filmed in the dark mostly with a script that meanders and often doesn't seem to make sense, this is the movie for you.